A kind of amorphous alloy, its laser welding method and welding auxiliary device

An amorphous alloy, laser welding technology, used in laser welding equipment, welding equipment, metal processing equipment and other directions, to avoid crystallization problems

Active Publication Date: 2021-02-02
CHINA-UKRAINE INST OF WELDING GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Another object of the present invention is to provide a welding auxiliary device, which can cool the workpiece to be welded during the welding process, and can quickly conduct heat in the heat-affected zone, which is conducive to solving the problem of crystallization of amorphous joints

Method used

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  • A kind of amorphous alloy, its laser welding method and welding auxiliary device
  • A kind of amorphous alloy, its laser welding method and welding auxiliary device
  • A kind of amorphous alloy, its laser welding method and welding auxiliary device

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Embodiment 1

[0050] The present embodiment provides a method for laser welding of amorphous alloys, which includes the following steps:

[0051] (1) The amorphous alloy was polished with 240-mesh, 1000-mesh, and 2000-mesh sandpaper in sequence, then immersed in absolute ethanol, and ultrasonically oscillated for 3 minutes. (2) Clamp the two zirconium-based alloy parts to be welded with a thickness of 1mm on the welding platform of the main body of the cooling device (made of brass), align the weld seam with the weld seam groove, and clamp and fix it with clamps and screws . (3) Connect the water inlet and outlet of the main body of the cooling device with the compressor, and pass the cooling water into the internal pipeline in the cooling device to form a circulation circuit. The temperature of the cooling water is 10°C. (4) Pass argon gas into the casing from the air inlet, and continue to inhale for 10 minutes, and wait until the air in the device is completely exhausted. (5) Laser wel...

Embodiment 2

[0053] The present embodiment provides a method for laser welding of amorphous alloys, which includes the following steps:

[0054] (1) Clamp two magnesium-based alloy parts to be welded with a thickness of 1mm on the welding platform of the main body of the cooling device (the material is gold), align the weld seam with the weld seam groove, and clamp and fix it with clamps and screws. (2) Connect the water inlet and outlet of the main body of the cooling device with the compressor, and pass the cooling liquid nitrogen into the internal pipeline in the cooling device to form a circulation circuit. The temperature of the cooling water is 20°C. (3) Pass argon gas into the housing from the air inlet, and continue to inhale for 20 minutes, and wait until the air in the device is completely exhausted. (4) Carry out laser welding, the laser is incident on the weld seam from the empty slot above the shell, argon gas is continuously fed into the welding process, the laser power is 75...

Embodiment 3

[0056] The present embodiment provides a method for laser welding of amorphous alloys, which includes the following steps:

[0057] (1) The amorphous alloy was polished with 240-mesh, 1000-mesh, and 2000-mesh sandpaper in sequence, then immersed in absolute ethanol, and ultrasonically oscillated for 5 minutes. (2) Clamp two iron-based alloy parts to be welded with a thickness of 2mm on the welding platform of the main body of the cooling device (made of copper), align the weld seam with the weld seam groove, and clamp and fix it with clamps and screws. (3) Connect the water inlet and outlet of the main body of the cooling device with the compressor, and pass the cooling water into the internal pipeline in the cooling device to form a circulation circuit. The temperature of the cooling water is 10°C. (4) Pass argon gas into the casing from the air inlet, and continue to inhale for 10 minutes, and wait until the air in the device is completely exhausted. (5) Laser welding is ca...

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Abstract

The invention discloses an amorphous alloy, its laser welding method and a welding auxiliary device, and relates to the technical field of laser welding. The amorphous alloy laser welding method includes: laser welding the parts to be welded and cooling the weld seam, adjusting the heat input E according to the following formula during laser welding, heat input E=T×E0; where: heat input E is laser The ratio between power and welding speed, the unit is J / mm, the unit of laser power is W, and the unit of welding speed is mm / s; T is the actual thickness of the workpiece to be welded, in mm; E0 is the base thickness of the workpiece to be welded The corresponding base heat input is 1mm, and the base heat input is 5.5‑6.2J / mm. The welding auxiliary device can cool the workpiece to be welded during the welding process, so that the heat in the heat-affected zone can be quickly conducted, which is beneficial to solve the crystallization problem of the amorphous joint.

Description

technical field [0001] The invention relates to the technical field of laser welding, and in particular to an amorphous alloy, its laser welding method and a welding auxiliary device. Background technique [0002] Amorphous alloys have the advantages of high strength, high hardness, and corrosion resistance, and have considerable application value in the fields of consumer electronics, medical equipment, and automobile manufacturing. With the improvement of application requirements, amorphous alloys are developing in the direction of large size and composite use with crystalline materials. However, since the preparation of amorphous alloys requires rapid cooling, and rapid cooling can only be achieved when the size of the amorphous alloy is small, the size of the amorphous alloy is currently relatively small, generally in the millimeter or centimeter level. In addition, at room temperature, when the shear force is too high, the cracks in the amorphous alloy will expand rapi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/21B23K26/70
CPCB23K26/21B23K26/703
Inventor 王海燕马焰议张宇鹏余陈徐望辉易耀勇
Owner CHINA-UKRAINE INST OF WELDING GUANGDONG ACAD OF SCI
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